catch3/include/internal/catch_singletons.cpp, branch v2.7.0

catch3/include/internal/catch_singletons.cpp, branch v2.7.0 Progmasoft Catch3: an independently maintained C++17 test framework with a parallel runner, property checks, snapshots and structured results. Added generic singletons facility 2018-08-19T08:34:44+00:00 Phil Nash 2018-06-15T20:25:04+00:00 eb783fc20edc3835c35252ad9f79b9bc627cc500 <sigh> yes, I know - but we have them - may as well make them consistent and safer

<sigh> yes, I know - but we have them - may as well make them consistent and safer